Search a number
-
+
32123840149 = 44971545301
BaseRepresentation
bin11101111010101110…
…101110011010010101
310001220202200011100101
4131322232232122111
51011242200341044
622431341214101
72215026064432
oct357256563225
9101822604311
1032123840149
1112695085625
126286261331
13304c3ac24b
1417aa53cb89
15c802eecd4
hex77abae695

32123840149 has 4 divisors (see below), whose sum is σ = 32195385900. Its totient is φ = 32052294400.

The previous prime is 32123840141. The next prime is 32123840197. The reversal of 32123840149 is 94104832123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94104832123 = 96797316269.

It can be written as a sum of positive squares in 2 ways, for example, as 11495699524 + 20628140625 = 107218^2 + 143625^2 .

It is a cyclic number.

It is not a de Polignac number, because 32123840149 - 23 = 32123840141 is a prime.

It is a super-3 number, since 3×321238401493 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32123840141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35772202 + ... + 35773099.

It is an arithmetic number, because the mean of its divisors is an integer number (8048846475).

Almost surely, 232123840149 is an apocalyptic number.

It is an amenable number.

32123840149 is a deficient number, since it is larger than the sum of its proper divisors (71545751).

32123840149 is an equidigital number, since it uses as much as digits as its factorization.

32123840149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71545750.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 32123840149 in words is "thirty-two billion, one hundred twenty-three million, eight hundred forty thousand, one hundred forty-nine".

Divisors: 1 449 71545301 32123840149